Copying device.



w. BAUERS FELD. COPYlNG DEVICE. AFPLICATION HLED DEC-20. l9i3- Patented May 4, 1915.

2 SHEETSSHEETI W. BAUERSFELD.

COPYING DEVICE.

APPLICATION FILED DEC. 20. 1913.

1,138,347. Patented May 4, 1915.

2 SHEETSSHEET 2.

IHUBMDUKIBMI COPY! NG DEVICE.

Jam E 1011.

Speciiiem w m Letters Patent.

1w. aim in him-.025. tours Haw Alvini'm' one Hunt my in wing with PM outed Ma 4, 1915.

Serial No. SOSJAOL jeuti m-i. each which is disposed on that side of the pint! iii-imaging to it which faces the m ning men-1n, in such a manner that the pueitic-n of ii klXib wiih wgm'd t the said plate is the same as that of the axis if the uhivciive used. when the plate was (kPOmLLL Min regard to the exposed phlte. H ie zihsn rw ubite. that the mark be conna died with th tinol m the (repy czu'rier in ieh a manner and he men-mm. tn the 0bjU'tiY'ib in such a Hummer that that point, nhii'h happens to he imiivuted by the toolgmiut on the (fUp V-Ci!Hhl'l vm'i'eepends to aim, {mint n11 he 0!fleet-surface, the inmges mi hiih coincide 0n the {A m plates with the i If the mark.

'l'hieugh the British mum spw'ritication 12.491 of the y ar l3? 1 a device enimhle of heing med for VUHtilHHBUS copying became hnmvn, Whieh is also free from the ahm'e immtiened (j-n'ure of transmission, but posmuses 10Y01'ni dismivnutages. which are ob" u? hv the; invention.

A; in this device the images of the toolpuint. whivh sex-we am he mink. do not full in'wfiy en the pixie. hm on images of the gsiniea. the win; LS i-z emlent on the quality (ii} l l\;1lliii;fi' is ihi'iiQDtzli to the emaiqa went in huii fihw il r m-Ming suriaves in the forming ML 1111 image both of the imirk and 01" the 9 13105. As these reflecting surfaces How a great part if the rays of iight to Q'Qi lush the images of the mark and of the plates are comparatively dark. 1n the British Patent 9190 of the year 1912 a Jm'iw is (h serihed. which ahw avoids the uhm'o mentioned erym's of tIflHSIniSFiOU. 'i'h kWh-e. heWij-vei. hue the great (lisada'f'llllflwi that it does not permit of mint-iminus (:01 fling, me or the setting of the tool- ;u-int with regard t0 the eopy-z-m'i-ier a dis phieement of the plates is ueceszeury "for each single uhjecbpoint. which may also muse v sitors of 'HILRDHEiSSiOIL v in the present 1pa-viiicatiun Lite sim 'iiest use shall he asemn ii that. when ?.he pistes were being expesed, they lay inone plane, ii -(it the negatives were made with identical slide of a spatial cross-slide system con.

objectives, that the connecting line of these objectives (the base-line) was horizontal and that the axes of the objectives were horizontal, parallel to each other and perpendicular to the baseline. Tlhese conditions must then also be fulfilled duringlcopying, ll in ad dition to this the same length of base-line and the same image distance (i. e. the same distance of the ohjcotive from the plate) he rhosen as when the plates were being eX- posed, on copying spatially the tool-point will trace out on the copyrarrier the surface of a body, which is exactly equal to the original one. If the length of the baseline he altered,v the distance of the image, however, be retained, the body, the surface of which traced out by the tool-point on the copy-carrier on a spatial copy being made, is similar to the original one. If, however, the length of the base-line be retained and the distance of the image altered, the body, the suriiace of which is traced out by the tool-point on the copy-carrier, on a spatial copy heing made, certainly possesses the same dimensions as to height and breadth as the original body, but its depth-dimensions are altered. This latter method can therefore be employed, Withers a body is to be produced having altered depth-dimensions, e. ,2 a relief.

For observing the images of themark on the plates, 9, double microscope may be'dis- .posed on the side of the platesrmnote from the objectiges, which double microscope can be displaced at will parallel to the plane of the plates. This displacement of the double microscope has no intliienoe on the copying process, as the FPOSltlOR of the mark is independent of that of the double microscope. A double microscope for binocular ohseiwa, tion is preferable to one for uniocular obstarvation, as it permits of a continuous copying of any linear elements of the ohjeeosui face. 4

For spatial copying the tool and the marl: are guided in such a manner that the oonnecting line of the tool 'point with the mark remains parallel to itself. (When the tool is stationary and the copy-car ier movable, the mark and the copy-carrier must he guided in such a manner that the connecting line of a point on the copy-carrier with the mark remains parallel to itself.) This re sult is obtained. for instance by journaling the tool and the mark (or in the other case the copy-carrier and the mark; on the top ing of a heightslide, a breath and :1 do slide in any sequence. It is simplest to i nag the tool on the cross-slide system and to make the relatively heavy copy-carrier stationary With such an arrangement the tool itself may be either nsled non-rotatably or, where it is to consist for instance of a rotating cutter, journaled rotatably. In order to be able to copy continuously, the copyist may best manipulate, wjien a cross slide system is sed, the actuating means of the latter, which must be available to him while he on liv ng the plates in such a manner that the tool-poii'it traces on the eopy-earrier heightnes {lines of equal height), breadth ii (lines o? equal breadth) or depth-lines (lines of equal depth}: The dis of the heighnplenes, the breadthplanes the depth-planesfrom one another lll'dy be small as desired, so that each nnmtual element of the surface of the object is copied For copying a height line the heighnslide, for copying a breadthline the breadthslid' and for copying a depth-line the depth ide set on the. slide next below it, in a given case on the guide of the bottom slide, and is fixed there, so that the. eopyist has to actuate only two slides. driven automatically, which may be of ad vantage under certain circumstances, the manipulation of the (spying system becomes particularly simple for the oopyisti When, however, any required linear or punctual elements of the surface of the object are to he copied, the rooyist must set all the slides. For this purpose the eetuating means of one of the slii'les n 1:3" he arranged to be driven by foot. If, when employing a cross-slide system, the copying device is to he used for the copying of height-lines in one plane, it Will be found" best to dispose the heightslide as the top slide, to set it to correspond to the chosen height on the intermediate slide and it there and to tit it with the mark, While the npper'one of the two other slides, the sequence Wlll'tll ES irnn'iaterial,

a is fitted with the tool. A corresponding ar for the three slides. both the tool and the marl: would have to he titted to the top slide and a relative adjnstability of the tool and the plane of the drawing, perpendiciiilar to the latter, he prm'ided for. \Vhen cowtonr-lines are to be copied in one plane, the top slide is again fitted with the mark and the upper one of the two remaining slides with the tool in this case, however, the copyist has to actuate all the slides, so that the mark traees our. in space the body to be copied, While the tool indicates the contourlines of the said oody in the plane. of the dra wi 11g.

lvhen one of thesetwo slides is' axed ill'EUilHfl'l Figurin ii in. i

ion fur the lUUl may iii: vi i in llit'll lb i may ii y illuminating PHi V i'ei the observer. that at buckg 'miiiil of the p dark 11in ii an comprising of ligii tion bright mark may iw in) Y a (liiiphi-iigriii-zipcituiv \liflhhkll it; illuminating device in i :1 smuii fleeting tl Pl mar iiimiiiiinliiigi aim in). bright. zii'ivi: mm}. to he of :Hl ':Hi

rod dispqsed In the ca ployed to for ' her a provide lying ii wiiiiiif-i'mm 'al ilw i mint n13 auxiliary iilitiii may bv kllspuiih c l ii iii}, 1' Elm rays M ii lii paw f-tlw the whim lw lilkil'li i Me on u und 0 bncligro tion of plate in; a (lill'l the pl mark viilc l lii: found to goons to lei the u :1 dark iimi'i; i wiiipliirui.

: iliuiim uis 11am iii mm 21ml Um zilillk ably ilirvp b i 11x4. in such a liillllilifi 44) some rich sdi im' tlmi fix? in) ite's may he in ulisciw 0 ectul iiim mark. 0 of the In on the pl; 45 sharply u llllk even v. av

the

9 illii'uui-puizir El hug! the zilwm' nieiitionwi must dlSU be minimum being varied. n ,iiccoidancv Willi tilw 0 Wlicn a UFO i 1 ased i-m j oints ilii m l e n 4 Emil-(i2 that small errors of Liflfi: matter, for (his purpose the depthslide and the vided with advantage.

nected together by a shaft of variable length, and by means of apair of bevel wheels 5 to horizontal scicwspindle g, which for the displacement of the luea ltl1-clide. The handwvhe l (I is provided with teeth, with Which'u' pinion 51* engages, which latter, when an automatic displacement of thc hrendtlr-sliilc in desired, may lie couplcd to i inotor The height slide {2* is ucJtuotsl by :1 d sk IL, which mounted at the foot of the support a, and is coupled in; too pain: of hovel Wheels IL and le two lloolccs joint it" and h, which are Cfifil'itf'tt 'l logrctlwr liy a shaft 11, of variolilc length, and by :1 further pair of bevel wheels to it \tllil i spindlc, Which-corrw spomlin; to thc actuation of the hrcndthslide 'rvoa tor the displacementof the hcig t-eliilc.

'lho t l lllll Sl i'l" is actuated liy :1 hand wheel '4', whim is coupled by :1 spindle i and two lloolw. jointa 1' and '5, which arc connected to cu li other by a shaft 1'3, to a hori- 2o11tal.;:pimllr. which serves for displacing the depth slide. 'llic ;pln(lle i ltw connectcd to a sliding port lr. which in guided. in 1 straight lipc on the. arm a of the support- 11 in :1 direct on puruilcl.to that of the displacement of the (legit/halide, in such a man nor that to in rotation of on spindle there correspmnls u ilieiplnccflicnt of the said sliding purl. which 'ogipoeitely directed to the duration of displuccmcnt of the depth lltlf hen. as nccossnry, the spindle oppositely tlirczidcd to the actuating spindle of the dopth-slide. The sliding part I}: titted with it pin 5: and the plat "frame a with :1 pin a; a boll-crank 7o 1i? engage; l y HHRHK ol 9 slot .l in llu arm A? the pin 1.2 and by means of f! slot is" in the arm 0" the pin 0 This hell crank pivoted on a pin Jr. which fix'cd to on MIll a of the support :1. and its arms are s chosen as regards their positon and rc-lfitirc inclination that to cup-y d splocci'nent of the depth-slide there correa pondb such :1 dis placement of the plate-frame, that the equation of condition. which holds good for the formation of a sharp image between image distance, depth of mark and objective focal length, is maintained.

The illuminating device indicated in the drawing cmnprises two are lamps Z and Z and a condenser 3 the axis of which is horizontal and at the Same time pcrpcmlicnlar to the plane of the plates. The Stllll illuminating device is contained in a casing i, which is fixed by means of two supports to the table to The lumps are so positioned with regard to the condenser that either :irc lamp wives for the illuniiimtion of one, ot the plate a".

llclnnd the llini inniing (l a mark m consisting of a Sl'lldll metal disk is fixed to a If -witli the same sequence of slides of l the cross-slide SjSteIIk-Lhe tool f were to be fixed to the breadth-slide 0- and a horizontal drawing surface Wei-c to be disposed on the table (Z us the copy-carrier, the device could he used. the toil being suitably formed, for projecting contounlines of the object-surface onto the plane of the drawing.

In Figs. 4 and 5 the device shown is intended to he used for spatial copying and the copy-carrier is stationary. The dispo silion of the a'ihjectives, the plates, the ob servution system and the actuating Ineaiu: correspomls to the former constructional example and is not shpwn in the figures of the second constructional example. As in the former example, there fixed to a support 0 a tabletop on. which there is mounted for the reception of the copycarrier a. table a and for the reception of the tool a threepart (i( $$-:ill(l system 6, 6 a which coinpriscs u depth-slide c s1 hreadtlrslirle and a hcightwslide e in the same sequencc as in the former civ:-t;triictional cxamplr The manner of mounting the tool on tho heigl'it-slide the son" as in Figs. 1 and '3. The tool is indicated by f, f is the motor shaft, f the motor, f the slide, to which the motor is fixed, and f the arc-shiipcii guide, along which the slide f can he eel. The hcighbslide 6 carries a strap n, to which n plane reflector 71 and the holder 75, of a small incandescent lamp 7?, which serves as the mark. are fixed. The reflector is vertical and is inclined by 45 to the plane of the plates, and the incandescent lamp is so positi ned with regard to the reflector that it and the toolpoint lie symmetrically to the plane of the reflector, so that its r flcctcd image coincides with the tool-point.

The operation of the device as shown in the drawing is as follows: A sterwscopic pair of photogranis of any object having llLCIl placed in the frame a and a block of suitable material having been mounted on thc table a, the operator, while observing the spatial image of the object presented l the double i'nicroscopc, hrings the spatial image of the mark ml, which results from tho two images of the mark, formed in thc plane of the photograms by the two ohjectivcs a, into coincidence with any point on the surface of the said spatial image. by mnnipuletin the three actuating devices of the cross-sli. 6 system a, 6 of by means of the hand wheels i and 'g and the foot-whorl 71. respectively. He thereupon causes tlic spatial image of m to move over the wholc of the surface of the spatial image of hll. object. which is visible in the field of view of the microscope. This movement of the mark in is accompanied loy a corresponding slide system, so as to bring another part of the photograms into the field of v1ew, whereupon the copying is proceeded with as above, until the entire. surface of the object.

has been reproduced. Should it be required to trace lines of height, breadth or depth with the apparatus, the operator fixes the height-slide, the breadth-slide or the depth slide respectively on the slide next below it and has then to manipulate only the actuating devices of the other two slides. For instance, when tracing a height-line on the block of material, the operator clamps the height-slide c at the required height and traces the desired line by manipulating the wheels 5 and g. In the example shown in the drawing the tracing of a height-line may be simplified by the breadth-slide being driven by the motor 9, so that all the operator has to do is to manipulate the handle 2'.

I' claim:

1. In a copying device for direct and continuous copying a copying system comprising a copy-carrier and a copying tool, .neans adapted to displace the said copy-carrier and the said copying tool relatively to one another, a system of actuating devices adapt ed to operate the said means, a mark con nected with the said copying system and adapted to share the said relative displacement, a stereoscopic system comprising a stereoscopic pair of photograms of the ob ject to be copied and two objectives disposed in juxtaposition to the said pair of photograms and on that side of them which faces the said copying system, means for observ ing the said photograms and an illuminating device adapted to present the said mark to the said objectives, each of which latter is adapted to form an ilnage of the said mark on the photogram opposite to it.

2. In a copying device for direct and continuous copying a copying system comprising a copycarrier and a copying tool, means ad apted to displace the said copy-carrier and the said copying tool relatively to one another, a system of actuating devices adapted to operate the said means, a mark connected with the said copying system and adapted to share the said relative displacement, the connecting line between the mark and the tool-pointremaining parallel to itself during such displacement, a stereoscopic system comprising a stereoscopic pair of photograms of the obiect to be copied and two objectives dispose in juxtaposition to the said pair of photograms and on that side of them which faces the said copying system, means Cor observing the said photograms and an illuminating device adapted to pre sent the said mark to the said objectives; each of which. latter is adapted to form an image of the said mark on the photogram opposite to it.

3. In a copying device for direct and continuons copying a copying system comprising a copy-carrier and a copying tool, a spatial cross-slide system adapted to displace the said c py-c:-irricr and the said copying tool relatively to one another, a system of actuating devices adapted to operate the said cross-slide system, a mark connected with the said copying system and adapted to share the said-relative displacement, a stereoscopic system comprising a. stereoscopic pair of photograms of the object to be copied and two objectives disposed in juxtaposition to the said pair of photograms and on that side of them which faces the said copying system, means for observing the said photograms and an illuminating device adapted to present the said mark to the said objectives, each of which latter is adapted to form an image of the said mark on the photogram opposite to it.

at. In a copying device for direct and continuous copying a copying system compris ing a copy carrier and a copying tool, a. spatial cross-slide system consisting of a height-slide, a, breadth-slide and a depthslide adapted to displace the said copy-carrier and the said copying tool relatively to one another, a system of actuating devices adapted to operate the said cross-slide system, a mark connected with the said copying system and adapted to share the said rela-- tive displacement, a stereoscopic system comprising a stereoscopic pair of photograms of the object to be copied and two objectives disposed in juxtaposition to the said pair of photograms and on that side of them which faces the said copying system, means for observing the said photograms and w an illuminating device adapted to present the said mark to the said objectives, each of which latter is adapted to form an'image of the said mark on the photogram opposite 7 them which faces the said copyin comprising a stereoscopic pair of photograms of the object ,to be copied and two objectivesdisposed in juxtaposition to the said pair of photogiams end on that side of system, means adapted to displace the said photograms relatively to the said objectives, each in the direction of the axis of the objective belonging to it, coupling means between the :0 said photograms and the said depth-slide,

means for observing the said photograms end an illuminating device adapted to present the said mark to the said ob'ectives, each of which latter is adapted to rm an image of the said mark'on the photogmm opposite to it.

WALTHER BAUEBS'FELD. Witnesses:

PAUL KRfiGER, RICHARD HAPER. 

